Home / 539,074.20-808,611.30-329,122.20

Finding the Fourth Proportional to 539,074.20, 808,611.30 and 329,122.20

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Solution

The fourth proportional to 539,074.20, 808,611.30 and 329,122.20 is: 493,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,074.20 : 808,611.30 = 329,122.20 : x
  2. Step 2: Convert to fraction form
    539,074.20/808,611.30 = 329,122.20/x
  3. Step 3: Cross multiply
    539,074.20x = 808,611.30 × 329,122.20
  4. Step 4: Simplify right side
    539,074.20x = 266,131,930,000.86
  5. Step 5: Solve for x
    x = 266,131,930,000.86/539,074.20
  6. Step 6: Final answer
    x = 493,683.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.